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Questions tagged [filters]

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For questions pertaining to photographic filters, which are usually glass or plastic accessories that are either screwed onto the lens or otherwise added in the optical path. Use "software-filters" for effects filters applied in apps such as Instagram, Photoshop, GIMP, etc.

541 questions
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2 votes
1 answer
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DIY Visible light blocking filter (IR passing filter)

Which one is a better option (to block more visible light and to block less IR light), floppy disk or developed unexposed photographic film?
adudeeduda's user avatar
adudeeduda
  • 25
1 vote
1 answer
53 views

Which “square filter” brand does this hood belong to?

I’ve bought this hood in a flea market some time ago thinking it’s a Cokin one but actually it’s not compatible. Notice the different notches. So I wonder what it is, so maybe I could pass it on when ...
whitezo's user avatar
whitezo
  • 13
10 votes
3 answers
5k views

Are polarizers effective against reflections from glass?

I have seen this question asked here How do I get rid of reflections on vertical glass fronts? I wonder if the same polarizer filters we use for making the underwater look clear instead of the sky ...
Delta Oscar Uniform's user avatar
Delta Oscar Uniform
  • 2,019
1 vote
1 answer
197 views

Equipment question - what in a lens name denotes when the filter mount moves during focusing?

Details: Canon RP I built a somewhat heavy lens attachment that mounts to the filter ring. This is fine with my old 85mm f1.8 as the filter ring is directly on the lens body. I recently got a 35mm f1....
nate's user avatar
nate
  • 197
4 votes
2 answers
192 views

wooden filters- What are they used for?

Does anyone know what these filters are for? They are wooden, yellow, red, green and blue. The glass filter media measures 2 1/2" x 2 1/2". They are marked: Folmer & Schwing Div. E.K &...
Babs's user avatar
Babs
  • 41
7 votes
1 answer
2k views

Hydrogen Alpha Filters (Buying The Right One and How It's Used)

I am looking to purchase my first hydrogen-alpha filter to use for day solar (Sun) photography as I just recently purchased a SkyGuider Pro device. However, upon several bouts of research I am at a ...
osswmi's user avatar
osswmi
  • 73
3 votes
1 answer
314 views

Polarizing filter - degree of polarization vs polarizing sunglasses?

I thought a polarizing filter only lets through light of one polarity. Thus if I have 2 polarizing sunglasses and look through both superimposed and rotate one it should completely block light at 90 ...
rupert's user avatar
rupert
  • 31
1 vote
2 answers
130 views

Photo of blue LCD display

I have a device with a blue LCD display where the backlight is blue and the letters are white. When I take photos of it with a cheap webcam, you cannot see any letter, because the blue light is too ...
Harald Kneidinger's user avatar
Harald Kneidinger
  • 13
0 votes
2 answers
125 views

How to test two polarising filters against each other?

I bought 2 CPL polarising filters from the same manufacturer with the same characteristics. One is medium level and one is their highest level. The difference between them, as noted by the ...
mosu's user avatar
mosu
  • 103
0 votes
2 answers
252 views

How can I recreate this lighting/editing technique?

I'd like to introduce myself into photography. Lately, I've been taking special attention to some pictures on instagram and trying to recreate, not the whole scene but the lightroom, filters and ...
Jay Jay's user avatar
Jay Jay
  • 1
1 vote
2 answers
208 views

Will a 77-82mm stepup + filter fit with stock hood on Sony 70-200mm 2F.8 GM?

I am about to buy a Sony A7RIII + 16-35mm F2.8 GM + 70-200mm F2.8 GM and want to use the same X4 CPL filter. I plan on buying the 82mm X4 CPL (which will fit the 16-35mm) and using a stepup to allow ...
Madarch's user avatar
Madarch
  • 11
4 votes
2 answers
3k views

Do I still need filters for photographing landscape under an eclipse, if I'm not zooming in on the sun itself?

Context: I find myself due to be in the path of the upcoming annular solar eclipse. This was unplanned and I am unable to get a proper filter delivered on time. The general consensus on the internet ...
Semaphore's user avatar
Semaphore
  • 143
2 votes
1 answer
498 views

Can I use a screw-on variable ND filter together with a square filter holder?

I have a K&F variable ND screw-on filter. I want to buy the Cokin Z series holder for graduated ND filters. Is it possible to use the Cokin Z holder with GNDs together with the variable ND screw-...
user avatar
user91798
2 votes
2 answers
92 views

Best Flat Light Diffuser for a High-Intensity Flashlight

I am doing some experimentation with a compact lighting kit to use for capturing textures, hence some constraints. I am using a high-intensity flashlight like the Acebeam X80-GT placed at a 1-3m ...
Joseph Azzam's user avatar
Joseph Azzam
  • 23
2 votes
2 answers
140 views

is using a screw on ND filter along with GND filers which require a holder possible?

I have a screw on 3 - 7 stop variable ND filter which screws on to the lens. I want to buy some GND soft grads which require a filter holder (This holder needs to screw on to the lens). Am I right ...
user avatar
user91798

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